title: 2,3'-anhydrosucrose.
abstract: Alkaline hydrolysis of alpha-D-glucopyranosyl 3,4-anhydro-beta-D-ribo-hexulofuranoside (1) involves participation of HO-2 and leads to 2,3'-anhydrosucrose (2). The structure of 2 was assigned on the basis of the n.m.r. and mass spectra of its hexa-acetate 3 and confirmed by the formation from 2 of the 6,6'-di-(4) and 6,1',6'-tri-O-trityl (5) derivatives, the 4,6-O-isopropylidene derivative (6), and 2,3':3,4-dianhydro-galacto-sucrose, isolated as the tetra-acetate 7. The structure of 7 was confirmed by its conversion into the 4'-O-tosyl-6,1',6'-O-trityl derivative 14 and by unambiguous synthesis from 6.
authors.affiliation: Biotechnology Centre, Institute of Chemical Technology, Prague, Czechoslovakia.
authors.forename: K
authors.initials: K
authors.lastname: Capek
authors.forename: E
authors.initials: E
authors.lastname: Cadová
authors.forename: P
authors.initials: P
authors.lastname: Sedmera
mesh_terms: D002240:Carbohydrate Sequence; D009682:Magnetic Resonance Spectroscopy; D008969:Molecular Sequence Data; D015394:Molecular Structure; D013395:Sucrose / Q000031:analogs & derivatives* / Q000138:chemical synthesis / Q000737:chemistry
chemical_list: C067062:2,3'-anhydrosucrose; D013395:Sucrose